http://files.seriouszone.com/
GameZone24 (Account Only)
FigonaWhatElse (Dead)
SeriousViolenceEN (Dead)
http://www.danceswithkleer.com/
http://www.serioussite.ru/
http://van0ss.ucoz.ru/
http://www.philer.de/ (Dead)
http://zi-studio.narod.ru/
http://tenfourmaps.telefragged.com/ (Dead)
http://serioussam.ucoz.ru
http://neominigan.ucoz.ru
http://ghostworks.ucoz.net [Dead]
http://rocketers.narod.ru/ [Dead]
http://serioussam.my1.ru/
ftp://dimitrovgrad.dyndns.info/ [Dead]
http://rus-bandits.clan.su/ [Necessary registration]
http://sam4ever.do.am/
http://sszc.ucoz.org/
http://zc-lab.org/
http://agents-klan.ucoz.ua/
http://st-games.ucoz.net
http://greennotpeace.ucoz.com
http://www.seriousbase.net/
https://mentalcorps.forumgaming.fr/